How to fix the Oracle error ORA-09845: soacon: Archmon unable to open named pipe.?

In this post, you’ll learn more about the Oracle ErrorORA-09845: soacon: Archmon unable to open named pipe. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-09845: soacon: Archmon unable to open named pipe.

Reason for the Error ORA-09845: soacon: Archmon unable to open named pipe.

open() failed to open named pipe ?/dbs/arch2mon_@.

How to fix the Error ORA-09845: soacon: Archmon unable to open named pipe. ?

You can fix this error in Oracle by following the below steps

Only the oracle dba can run archmon. Make sure that your current OS login has owner or group search permission for the ORACLE_HOME/dbs directory. The max number of open files may have been exceeded.